98713621 has 4 divisors (see below), whose sum is σ = 98860972. Its totient is φ = 98566272.

The previous prime is 98713619. The next prime is 98713633. The reversal of 98713621 is 12631789.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25867396 + 72846225 = 5086^2 + 8535^2 .

It is a cyclic number.

It is not a de Polignac number, because 98713621 - 2¹ = 98713619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98713661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72666 + ... + 74011.

It is an arithmetic number, because the mean of its divisors is an integer number (24715243).

Almost surely, 2^98713621 is an apocalyptic number.

It is an amenable number.

98713621 is a deficient number, since it is larger than the sum of its proper divisors (147351).

98713621 is a wasteful number, since it uses less digits than its factorization.

98713621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147350.

The product of its digits is 18144, while the sum is 37.

The square root of 98713621 is about 9935.4728624258. The cubic root of 98713621 is about 462.1600068578.

The spelling of 98713621 in words is "ninety-eight million, seven hundred thirteen thousand, six hundred twenty-one".